Dust collector and separator.



E". HQPRI E R DUST COLLECTOR AND SEPABATOR. iv

APPLIOATION IILBI) MAYA-18A. 1908. v

' Patented Nov. 2, 1909.

2 BHBFTS-SHEET 1.

E, H. FRIGKEY. DUST COLLECTOR AND SEPARATOB. AYPLIOATION FILED MAY 18. 1908.

938,656, Patented 1\ T0.v. 2; 909.

2 sums-8mm 2.

I To all whom may concern:

'ing drawings,

Unitar an srA Es PATENT OFFICE.

EDWARD H. FRICKEY, or sr'. Louis, IMIssouRI, ASSIGNOR '10 WILLIAMS PATENT onusnnr. & rutvmuznn COMPANY, MISSOURI.

Specificatien of Letters Patent.

nusr COLLECTOR-AND snrnim'ron.

Patented Application filed May 18, 1908. Serial Ho. 433,547.

Be it known that I, EDWARD H. FmcKEY,

a citizen of the United States, residing at St. Louis, Misso'uri, have invented a certain new and useful Improvement in- Dust Collectors and Separators, of which the following is a full, clear, and exact description,

such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyforming part of this specification, in Wl11Cl1''-.

Figure l is a"vertical' sectional view of a dust collector and separator constructed'in accordance with my invention; Fig. 2 is a horizontal cross sectlonal v1ew taken on the of a modified. form of my invention; Fig. 5 is a cross sectional view taken on the line er Fig. 4; and Fig. 6 is a cross sec tionajl view taken on the line 6-6 of, Fig. 4; This invention relates to dust collectors and separators, and particularly to that type -which are commonly-termed cyclone dust collectors. I

The main object of my invention is to pro-' vide a dust collector and separator having a screening member composed of a number of removable sections which are held in.

' operative position in a novel manner.

Another object of my invention is to provide a dust collector and separator comprising a casing having its lower end con-- .tracted, means for introducing a current of Referring to Figs. 1 to 3 of the drawings which illustrate one form of .my' invention, 1 designates an inverted conical-shaped casing provided at its lower end with a discharge chute 2 and having its upper edge butting against a ring-shaped supporting member 3. The upper'portiqn-oflthe casingconsists of a cylindricalshaped member 4 provided with a closed top 5, the loweredge of said cylindrical-shaped member 5 termihating adjacent the ring-shaped suppdrting member 3. A tube 6 is arranged inside of the. member 4 and projects'th'rough the top 5.

.thereof to form a discharge conduit for the 'air from which the dust has been removed, and a; feed pipe 7 extends tangentially into the cylindrical-shaped member. 4, as shown in Fig.' 2, for introducing a current of dustladen air into the casing, the air whirling around the inside of the casing and then passing upwardly .through the discharge conduit 6.

A screening member is arranged inside of the inverted conical-shaped portion of.

the casing and is spaced away therefrom so thatthe fine particles of dust in the air can pass through said screening member into the discharge pipe 2 at the lower end ofthe casing, the coarse particles of dust in the air sliding down the screening member to a discharge conduit 8 at the lower end of same.

-This screening member forms one of the novel features of my invention and consists of a number of removable sections 9 of per- OF,ST. LOUIS, MISSOURI, ACORPO-RATION 0F Nov. 2, 1909. i

forated material, the screening member herein show being composed of four wedge shaped sections which are slidingly mounted in guideways. Each of said guidewaysconsists of a bar 10 provided at its upper end with a flange 10 that is connected to the underneath side of the ring-shaped supporting member 3, and a top bar 11 mounted on "the-.bar-10 and spaced away therefrom by a filler 12 so that each .guideway is provided with two grooves or slots that receive the edge portions of two of the screen sections ;9,. The bars 10 and 11 which forma guide- Way are connected together by bolts'l3 that pass through said bars and the filler 12 and also" through spacing sleeves 14 that are arranged between the bar 10 and the insideface of the inverted conical-shaped portion 1 of the casing, as shown in Figs. 1. and 3. These inclined guides thus, form the supporting means for the lower portion 1 of the casing, and the cylindrical-shaped member 4a, which forms the upper portion "of the casing, is

connected to vertically-disposed extensions 7 11 on the top bai's 1-1 of the guideways. The upper edge portion of the discharge chute 8 of the screening member is clamped between the bars 10 and 11 so that the upper edge, 'of'saidI chute forms a stop for the sections 9-of the screening member. The lower edge of the cylindrical-shaped member 4: of.. the casingis spaced far enough froinfthering-shaped supporting member 3 to form a slot through which the up er ends of the screen sections 9 extend, as s own in Fig. 1, so as to enable said sections to be grasped and pulled upwardly out of their guideways when it is desired to use a screenin member of a different mesh or when sai sections have worn out.

A perforated pipe 15 surroundsthe lower end of the air discharge tube 6 for introduc-- ing a spray into the casing so as to moisten the air and thus cause the very fine particles of dust in the air to settle instead of passing out of the discharge tube 6. The fluid, which can either be steam or water, is conducted to said perforated-pipe byan inlet pipe 16 and the fluid which does not pass through the openings in said perforated pipe is conducted away therefrom by means of an outlet pi e 17.

Aper orated pipe 15-is purposely located immediately around th'elower end of the air discharge tube 6, in order that the spray discharging from the perforations in said pipe 15 will moisten the air and the fine particles of dust carried thereby at the time said air passes into the'discharge pipe, and thereby practically all of the dust is removed or separated from the air discharging from the casing.

Figs. 3 to 6, inclusive, illustrate a modified form of my invention wherein the inverted conicahsha ed member 20 that forms the lower portion of'the casing is connected by brackets 21 to aring shaped supporting member 22. The cylindrical-shaped member 23, that forms the up er POItIOD Of the casing is fastened to braclzets or arms 24on the ring-shaped supporting member 22, and

the tube 25 that projects into the upper portion of the casing to form discharge conduit 'for the air from which the dust has been removed, is connected to the removable top 26 of the oylindfical-shaped member, said'top being detachably connected by fastenin devices 27 to a flange 28"on the upper e ge of the member 23. 7 The screening member which is arran ed inside of the casing is made up of a num er of sections 29 of perforated material. The sideedge portions of each of the screen sections 29 are connected to two members 30 thatrest upon the inside face of the inverted conical-shaped member 20, and said member 20 is preferably provided adjacent its lower end with a ring or projection 31 that forms a stop or abutment for the members 30 and thus holds the screen sections in operative position. I prefer to use members 30 of approximately channel-shape in cross section, said members being set edgewise so that their webs are disposed vertically. The flanges or legs of each pair of'members 30 project toward each other so that the outside faces of the vertical webs of one pair of members 30 will bear against the outside upwardly out of the casing when the screen iaces, of the vertical webs of the members 30 to. which the adjacent screen sections are connected. The screen sections are con-' nected to the upper legs or flanges of the members 30' and the side edges of the screen sections butt against each other so that a perfectly smooth screening member 'is produced with no projections or ridges between the various'sections of said screening member. The discharge chute 32 of the screening member is provided at its up er end with a flared flange that rests free y upon portions of the members 30 that pro]ect below the screensections secured to saidv member s, and the cylindrical-shaped mom ber 23 which forms the-upper portion of the casing is provided at its lower ed erwitha flange 33 that bears upon the insi e face of the screening member, as shown in Fig. 4:. The screen sections and the supporting members 30 to which said screen sections are connected project beyond the lower edge of the cylindrical-shaped member 23 so that said members 30 can be grasped and pulled sections have worn out or it is desired to use a screen of different mesh.

Having thus described my invention, what I claim as new and desire to secure by Let-' ters Patent is: 4 r

=1. A dust collector. and separator, com-.

guideways secured to the lower portion of the casing on the interior thereof, which gnideways are spaced away from the wall of the casing, and a screening member composed of a series of removable sections, the

' ingly mounted in said guideways, a supporting device to which said guideways are'connected, and means connected to said guideside edges of which sections are slidingly mounted in the guideways.

ways for supporting the casing; substantially as described.

3. An ,apparatus of the character described, provided with a plurality of inclined guideways, each of which consists of a pair of bars spaced away from each other 'to' form slots, sections of perforated material slidingly mounted in said slots, and a discharge chute having its upper edge portion arranged between said pairs of bars and connected thereto; substantially as described.

4. An apparatus of the character de-' scribed having a casing which consists of a cylindrical-shaped upper portion, a lower portion of greater diameter than said upper portion, and a screening member arranged inside of the lower portion of'the casing and tion, guideways arranged inside of the lower portion of the casing, and screen sections slidingly mounted in said guideways and having their upper ends terminating outside of said casing; substantially as described.

*6. An apparauts of the character described, comprising a casing which consists less diameter than said lower portion, in-

of an inverted Conical-shaped lower portion and a cylindrical-shapedupper portion of '--clined guideways arranged inside of the the'upper portion of the casing, and aflange lowerportion of the casing, removable screen sections slidingly mounted in said guideways and terminating beyond the lower edge of at the upper edge of the lower portionof the casing which cooperates with the upper portionof the casing to form a slot through.

which said screen sections tially as described.

7. An apparauts of the character described, comprising a ring-shaped supporting member, a plurality .of inclined bars c'on pass substannected to said supporting member, clamping bars arranged above said bars and spaced away therefrom to form ideways, removable screen sections'slidingly mounted in said guideways, extensions on the upper ends.

of said clampingbars, a cylindrical-shaped member connected to said extensions to form the upper portion of a casing, and an inverted conical-shaped member connected: to sald guldeways to form the lower portion of thercasing; substantially as described.

8. In an apparatus of the classdescribed,

.a casing, an air discharge pipe leading from the upper end thereof, means for introducmg a current of dust-laden air into said casing, and a spray pipe arranged around the-extreme lower end of the .air discharge pipe, the apertures in which spray pipe'are so formed as to throw the jets discharging fromv said pipe to the center of the air dis charge pipe. p 9. In an apparatus of the classdescribed, a casing having a closed top, an air -dis-' charge pipe leading from said top, a pipe for leading a current of dust-laden air into said casing, a sectlonal screen inside sald-casing, j

the sections of which are movable, a perforated pipe surrounding thelower end of said air discharge pipe, the perforations in' so which-pipe are so formed as to, throw the jets discharging from said pipe to the center .v of said air discharge pipe. 1

tlonary casing, slotted guideways arranged inside of said casing and spaced away therefrom, and a screening member consisting of wedge-shaped. pieces of perforated ma- I terial slidingly mounted in said guideways; substantially as described.

11. A dust collector and separator, provided with 'a casing that consists of a lower portion and an upper portion, and a screen arranged in the lower portion and consisting of removable-sections that pass between the upper and lower portions of the casing and terminate outside of same; substantially as described.

12. A dust collector and separator, provided with a casing that comprises'an inverted conical-shaped lower portion, a cylindrical-shaped upper portion that projects into the upper end of same, and removable screen'sections arranged in saidv lower portion and having their upper ends terminating outside of the upper portion of the casing; substantially as described.

13. A dust collector and separator, comprising an approximately ring-shaped supporting mem er, a number of inclined guide ways depending from said member and securely connected thereto, wedge-shaped screen sections slidingly mounted in said guide-ways, and a casing surrounding said screen sections and supported by said guide ways; substantially as described.

14:. A dust collector and separator, provided with a casing which consists of asta- I 'tionary upper and lower portion that are an upper portion and a lower portion carried by said guideways and having their adja-- cent edgesspaced away to form a slot betwe'en same, and screen sections slidingly mounted in said, guideways and passing through said slot; substantially as described.

In testimony. whereof I hereunto afiix my signature in the. presence of two witnesses, this thirteenth day of May 1908. EDWARD H. FRIGKEY.

Witnesses: 1 v

' MILTON F. WILLIAMS, GEORGE BAKEWELL. 

